High-tech tools for immigration crackdowns. Fears of smartphone addiction. YouTube algorithms that steer youths into extremism. An experiment in gene-edited babies. Doorbells and concert venues that can pinpoint individual faces and alert police. Repurposing genealogy websites to hunt for crime suspects based on a relative’s DNA. Automated systems that keep tabs of workers’ movements and habits. Electric cars in Shanghai transmitting their every movement to the government. It’s been enough to exhaust even the most imaginative sci-fi visionaries.

The new 1.7 million square-foot campus will be called Google Hudson Square. The Alphabet Inc. division said it had reached lease agreements at 315 and 345 Hudson Street and signed a letter of intent at 550 Washington Street to make up the new 1.7 million square-foot campus.

Alphabet Inc.’s Google said on Monday it would shut down its Google+ social media service in April, four months ahead of schedule, after finding a software flaw for the second time this year that allowed partner apps to access its users’ private data.

Alphabet Inc.’s Google said on Thursday it would make changes to how it handles sexual harassment claims, a week after thousands of its employees around the world walked off their jobs to protest its response to such issues.

Public databases that shine a light on online political ads — launched by Facebook and Google before Tuesday’s U.S. elections — offer the public the first broad view of how quickly the companies yank advertisements that break their rules.

Tech companies that were once considered disrupters — like YouTube and Google — have grown into media giants in their own right. In 2017, online advertising reached $209 billion, for the first time surpassing the TV ad market. So, in this new media environment, where virtually every studio is launching its own streaming service and every tech company is getting into the TV show-producing business, exactly who is disrupting who?